Air supply lighting system

Abstract

To provide an air-supply and illumination system capable of reliably securing the cleanliness of an operation area.SOLUTION: An air-supply and illumination system 10 comprises: air-supply equipment 17 which supplies a clean air downward from an air outlet area 21 provided at a ceiling portion positioned just over a surgical bed 12 and forms a layer flow area of the clean air around the surgical bed 12; shadowless lamp equipment 18 which has a plurality of light sources 26 in a shadowless lamp area 24 provided around the air outlet area 21 and illuminates a surgical field in a shadowless manner; and plane emission illumination equipment 19 which has a first plane emission material 31 provided around the shadowless lamp area 24.SELECTED DRAWING: Figure 1

Description

[[Technical Field]]

[0001] The present invention relates to an air supply lighting system. [[Background Art]]

[0002] Conventionally, an operating room has been provided with an air supply facility that supplies clean air around the operating table and a shadowless lamp facility that illuminates the surgical field in a shadowless state. For example, in Patent Document 1, the air supply facility is provided on the ceiling, and forms a laminar flow region (clean region) around the operating table by supplying clean air to the operating table from above. The shadowless lamp facility includes an articulated arm connected to the ceiling, and a lighting device supported on the ceiling via the articulated arm. [[Prior Art Literature]] [[Patent Literature]]

[0003] [[Patent Document 1]] Japanese Patent Application Laid-Open No. 2019-88731 [[Summary of the Invention]] [[Problem to be Solved by the Invention]]

[0004] However, in the shadowless lamp facility of Patent Document 1, it is necessary to adjust the articulated arm to arrange the lighting device close to the surgical field, that is, close to the operator. For this reason, there has been a risk that the articulated arm or the lighting device disturbs the flow of clean air, making it impossible to ensure the cleanliness of the surgical field. Such a problem is not limited to the case where an operator performs an operation, and is also common, for example, to the case where a worker works on a workbench installed in a clean area. [[Means for Solving the Problem]]

[0005] A supply air lighting system that solves the above problems comprises: an air supply system that supplies clean air downward from an outlet area located in the ceiling directly above the object to be air-illuminated, forming a laminar flow region of the clean air around the object to be air-illuminated; a shadowless lighting system that has multiple light sources in a shadowless lighting area located around the outlet area, and illuminates the work area above the object to be air-illuminated in a shadowless state; and a surface-emitting lighting system that has a surface-emitting material located around the shadowless lighting area. [Effects of the Invention]

[0006] According to the present invention, the cleanliness of the work area can be reliably ensured. [Brief explanation of the drawing]

[0007] [Figure 1] This figure shows a schematic configuration of one embodiment of an air supply lighting system. [Figure 2] This block diagram shows an example of the electrical configuration of an air supply lighting system. [Figure 3] This is a block diagram showing an example of the hardware configuration of an information processing device. [Figure 4] This diagram schematically illustrates an example of a second-surface light-emitting material selected by a selection process on the monitor when there are multiple operators. [Figure 5] This figure shows a schematic configuration of the air supply lighting system in a modified example. [Modes for carrying out the invention]

[0008] An embodiment of the air supply lighting system will be described with reference to Figures 1 to 4. As shown in Figure 1, the air supply and lighting system 10 is installed, for example, in an operating room 11. The air supply and lighting system 10 is a system that, in the operating room 11, creates a laminar flow region (clean region) of clean air flowing from top to bottom around the operating table 12, which is the target of the air supply and lighting, and also illuminates the area around the operating table 12. The operating room 11 has a floor 13, walls 14, and a ceiling 15. The walls 14 are connected to the floor 13 and the ceiling 15. The walls 14 are equipped with an operation timer that shows the current time, surgery time, anesthesia time, etc.

[0009] The air supply and lighting system 10 includes an air supply unit 17, a shadowless lamp unit 18, and a surface-emitting lighting unit 19. The air supply system 17 creates a laminar flow region of clean air flowing from the ceiling 15 towards the floor 13 around the operating table 12. The air supply system 17 includes a clean air supply device 20 and an outlet area 21.

[0010] The purified air supply device 20 takes in the air around the device, purifies it, and then supplies the purified air to the outlet area 21. The air outlet area 21 is located in the ceiling 15. Specifically, the air outlet area 21 is located in the ceiling portion directly above the operating table 12. In a top view, the air outlet area 21 is located so as to overlap the operating table 12 and the surrounding area of ​​the operating table 12. The air outlet area 21 is provided with multiple air outlets, which are not shown. The air outlet area 21 blows clean air supplied from the clean air supply device 20 downwards from each air outlet.

[0011] The shadowless lighting system 18 illuminates the area around the operating table 12, including the surgical field, which is the work area on the operating table 12 where the surgeon performs the procedure, in a shadowless state. The area illuminated in a shadowless state by the shadowless lighting system 18 is called the light field. The shadowless lighting system 18 consists of multiple recessed lighting fixtures 25 installed in the shadowless lighting area 24. The shadowless lighting area 24 is provided on the ceiling 15 so as to surround the air outlet area 21. The multiple recessed lighting fixtures 25 are installed in a grid arrangement in the shadowless lighting area 24.

[0012] Each recessed lighting fixture 25 has a light source 26 and a direction adjuster 27. The light source 26 is, for example, an LED (Light Emitting Diode) light with a lens. The light source 26 emits directional illumination light of a predetermined illuminance towards the area around the operating table 12.

[0013] The direction adjuster 27 adjusts the illumination direction of the light source 26 by being controlled by a control device 36, which will be described later. The direction adjuster 27 is composed of, for example, multiple servo motors and a mechanism that changes the illumination direction of the light source 26 when the servo motors are driven. The shadowless lamp equipment 18 is configured so that the light field can be adjusted by changing the illumination direction of the light source 26.

[0014] The surface-emitting lighting system 19 can illuminate the operating room 11 with the same illuminance as the entire sky by switching on a switch (not shown). The surface-emitting lighting system 19 has a plurality of first surface-emitting materials 31 and a plurality of second surface-emitting materials 32 as lighting fixtures.

[0015] The first surface light-emitting material 31 is installed on the ceiling 15. The first surface light-emitting material 31 is, for example, a surface-emitting LED panel. The first surface light-emitting material 31 is installed across the entire ceiling 15 so as to surround the shadowless lamp area 24. The first surface light-emitting material 31 illuminates the inside of the operating room 11 by emitting white light from the entire panel.

[0016] The second-sided light-emitting material 32 is installed on the wall 14. The second-sided light-emitting material 32 is installed on the upper part of the wall 14 so as to surround the operating room 11. The second-sided light-emitting material 32 is, for example, an organic EL (Electro-Luminescence) panel. The light emission mode of the second-sided light-emitting material 32 is controlled by a control device 36, which will be described later. Specifically, the second-sided light-emitting material 32 illuminates the inside of the operating room 11 by emitting white light as a whole panel. The second-sided light-emitting material 32 also functions as a monitor that displays images based on video signals from the control device 36, which will be described later.

[0017] As shown in FIG. 2, the air supply lighting system 10 includes a position information acquisition device 35 and a control device 36. The position information acquisition device 35 acquires position information of an acquisition target around the operating table 12, and outputs the acquired position information to the control device 36. The position information acquisition device 35 acquires position information with an operator, a medical device 38, and the like as acquisition targets. In addition to information related to the illumination position of the embedded lighting fixture 25, information on the position and shape of an object that becomes an obstacle to illumination by the embedded lighting fixture 25, and information on the position and shape of an object located between the operator and each second surface light-emitting material 32 is acquired as the position information. As shown in FIG. 1, for example, the position information acquisition device 35 has a plurality of image capturing devices 37 installed on a ceiling 15 or the like. Each image capturing device 37 is installed above the operating table 12, and includes the periphery of the operating table 12 in its image capturing range. The position information acquisition device 35 acquires position information by performing image recognition processing on images of the periphery of the operating table 12 captured by each image capturing device 37. The position information acquired in this manner includes the operator's standing position, posture, arm position, and hand position, as well as the position and shape of the medical device 38 located around the operating table 12. One example of the medical device 38 is an angiography apparatus that moves to scan the operating table 12 and performs angiography of a patient.

[0018] With reference to FIG. 3, the hardware configuration of an information processing apparatus H10 that functions as the control device 36 will be described. As shown in FIG. 3, the information processing apparatus H10 includes a communication apparatus H11, an input apparatus H12, a display apparatus H13, a storage apparatus H14, and a processor H15. Note that this hardware configuration is an example, and the apparatus may include other hardware.

[0019] The communication apparatus H11 is an interface that establishes a communication path with other apparatuses to transmit and receive data, and is, for example, a network interface, a wireless interface, or the like.

[0020] The input device H12 is a device that receives input from the user, such as a mouse, keyboard, or touch panel. The display device H13 is a display or touch panel display that displays various types of information.

[0021] A storage device H14 is a device that stores data and programs for executing various functions. Examples of storage devices H14 include ROM, RAM, and hard disks. The processor H15 controls each process using programs and data stored in the memory device H14. Examples of processor H15 include CPUs and MPUs. This processor H15 loads programs stored in ROM, etc., into RAM and executes various processes corresponding to various operations.

[0022] Processor H15 is not limited to performing software processing for all of the processes it executes. For example, processor H15 may have dedicated hardware circuits (e.g., application-specific integrated circuits: ASICs) that perform hardware processing for at least some of the processes it executes. That is, processor H15 can be configured as a circuit including (1) one or more processors that operate according to a computer program (software), (2) one or more dedicated hardware circuits that perform at least some of the various processes, or (3) a combination thereof. The processor includes a CPU and memory such as RAM and ROM, and the memory stores program code or instructions configured to cause the CPU to execute processes. Memory, or computer-readable media, includes any available media that can be accessed by a general-purpose or dedicated computer.

[0023] As shown in Figure 2, the control device 36 performs direction control processing to control the lighting direction of each recessed lighting fixture 25 based on the position information from the position information acquisition device 35. In the direction control process, the control device 36 identifies, for example, the surgeon's hand position as well as the medical equipment 38 located between the surgeon's hand position and each embedded lighting fixture 25, based on the acquired position information. The control device 36 then controls the direction adjuster 27 of each embedded lighting fixture 25 so that the surgeon's hand position, i.e., the surgical field, is illuminated without shadows. Furthermore, in direction control, if there are multiple surgeons, the control device 36 identifies the hand position of each surgeon as well as the medical equipment 38 located between each surgeon's hand position and each embedded lighting fixture 25. The control device 36 then controls the direction adjuster 27 of each embedded lighting fixture 25 so that each surgeon's hand position is illuminated without shadows.

[0024] In addition, during direction control, the control device 36 may change the illumination direction of all embedded lighting fixtures 25. Alternatively, the control device 36 may change the illumination direction of some of the embedded lighting fixtures 25 selected according to the proximal position, while leaving the remaining embedded lighting fixtures 25 to illuminate the surgical field.

[0025] The control device 36 receives input from various medical devices 38, including patient vital signs as well as image information such as X-ray images and images captured by endoscope cameras. The control device 36 is configured to allow the selection of a second surface-emitting material 32 for displaying information, depending on the information, based on instructions given to the input device H12.

[0026] The control device 36 may be configured to perform a selection process that automatically selects a second surface light-emitting material 32 (information display device) to display information based on position information. Specifically, the control device 36 acquires the operator's standing position and posture, as well as the position and shape of medical equipment 38 around the operating table 12, based on position information, and displays the information on a second surface light-emitting material 32 located in a position easily visible to the operator.

[0027] Furthermore, during the selection process, if surgery is being performed by multiple surgeons, the control device 36 acquires the standing position and posture of each surgeon, as well as the position and shape of the medical equipment 38 around the operating table 12, and then identifies the positional relationship between each surgeon and the second-surface light-emitting material 32. The control device 36 then displays the information on the second-surface light-emitting material 32 that is positioned in a location easily visible to each surgeon.

[0028] Through these instruction operations and selection processes, the control device 36 displays biological information on the second surface light-emitting material 32a and image information on the second surface light-emitting material 32b, for example, as shown in Figure 1. This allows various types of information to be displayed in a position easily visible to the operator.

[0029] Furthermore, as shown in Figure 4, when surgery is performed by multiple surgeons 40c and 40d, the control device 36 acquires the standing position and posture of each surgeon 40c and 40d, as well as the position and shape of medical equipment 38 around the operating table 12, based on positional information, and identifies the positional relationship between surgeons 40c and 40d, medical equipment 38, and the second surface light-emitting material 32. Then, through a selection process, the control device 36 displays information on the second surface light-emitting material 32c that is easily visible to surgeon 40c, and also displays information on the second surface light-emitting material 32d that is easily visible to surgeon 40d.

[0030] (action) In the above-described air supply lighting system 10, the shadowless lamp equipment 18 can illuminate the area around the operating table 12 in a shadowless state, and the surface-emitting lighting equipment 19 can illuminate the entire operating room 11 with the same illuminance as the entire sky.

[0031] The effects of this embodiment will now be explained. (1) In the air supply lighting system 10, the shadowless lighting equipment 18 consists of multiple recessed lighting fixtures 25 installed around the air outlet area 21. As a result, the area around the operating table 12 can be made shadowless by illuminating it from diagonally above the operating table 12 with multiple recessed lighting fixtures 25. In addition, a surface-emitting lighting equipment 19 capable of illuminating the inside of the operating room 11 with the same illuminance as the entire sky consists of surface-emitting materials 31 and 32 installed on the ceiling 15 and walls 14. As a result, illuminance can be ensured inside the operating room 11, including the surgical field. In other words, in the air supply lighting system 10, shadowless illumination around the operating table 12 and ensuring illuminance inside the operating room 11 can be achieved without placing multi-joint arms or lighting devices around the operating table 12. As a result, the flow of clean air around the operating table 12 is less likely to be disturbed, thus more reliably ensuring the cleanliness of the surgical field.

[0032] (2) Since the various lighting fixtures that serve as heat sources are installed on the ceiling 15 and walls 14, the rise in the temperature around the surgeon due to the lighting is suppressed. This makes it possible to equalize the temperature distribution within the operating room 11. As a result, the difference in perceived temperature between the surgeon and other staff members can be reduced.

[0033] (3) In a configuration in which the shadowless lamp equipment is supported on the ceiling 15 via a multi-joint arm, the multi-joint arm is required to have a range of motion that avoids interference between the shadowless lamp equipment and other medical devices 38. For this reason, the ceiling 15 needs to be raised to ensure that range of motion is secured.

[0034] In this respect, the air supply and lighting system 10 does not require a multi-joint arm, which allows for a lower required ceiling height 15. As a result, the volume of the operating room 11 is reduced, and the required capacity of the air conditioning equipment in the operating room 11 can be reduced. Consequently, the running costs of the operating room 11 can be reduced.

[0035] (4) Furthermore, by lowering the required height of the ceiling 15, the required floor height on the floor in which the operating room 11 is installed is reduced. As a result, the degree of flexibility regarding the installation of the operating room 11 is increased, and the construction costs of the building containing the operating room 11 can be reduced.

[0036] (5) The surface-emitting lighting equipment 19 has a second surface-emitting material 32 installed on the wall 14, which makes it easier to ensure sufficient illumination inside the operating room 11. (6) A portion of the second surface light-emitting material 32 functions as a monitor. This eliminates the need for a multi-joint arm to connect a monitor displaying vital signs to the ceiling 15. As a result, the cleanliness of the surgical field can be more reliably ensured.

[0037] (7) The shadowless lighting system 18 allows the lighting area to be changed by the recessed lighting fixture 25. This makes it possible to illuminate an appropriate area in a shadowless state. (8) In the air supply lighting system 10, the control device 36 changes the lighting area of ​​the recessed lighting fixture 25 based on the position information acquired by the position information acquisition device 35. This makes it possible to illuminate an appropriate area in a shadowless manner, according to the movements of the operator and the position of the medical equipment 38.

[0038] (9) The control device 36 is configured to allow selection of a second surface light-emitting material 32 for displaying various information. This allows various information to be displayed in a position that is easy for the operator to see. This embodiment can be implemented with the following modifications. This embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically.

[0039] The location information acquisition device 35 may acquire location information using a transmitter. For example, the location information acquisition device 35 may acquire location information about the operator using a transmitter carried by the operator or a transmitter attached to the operator's wrist. Alternatively, the location information acquisition device 35 may acquire location information about a medical device using a transmitter attached to the medical device. It is preferable that the transmitter attached to the medical device transmits information including the shape of the medical device.

[0040] The air supply and lighting system 10 only needs to be controlled so that the shadowless lighting equipment 18 is included in the light field around the surgeon's hands. Therefore, the air supply and lighting system 10 may be configured such that the position information acquisition device 35 outputs the position of the surgeon's hands and the coordinates of medical equipment within the operating room 11 as position information to the control device 36, and the control device 36 controls the direction adjusters 27 of each embedded lighting fixture 25 based on those coordinates. In such a configuration, it is preferable that the control device 36 stores not only the coordinates of each position within the operating room 11, but also the control mode of the direction adjuster 27 for each coordinate. Alternatively, the air supply and lighting system 10 may be configured so that the shadowless lighting equipment 18 is included in the light field around the surgeon's hands by an infrared search and tracking system that detects and identifies the position of the surgeon's hands using infrared light and tracks that position.

[0041] The air supply and lighting system 10 only needs to be able to illuminate the area around the operating table 12, including the surgical field, in a shadowless state using the shadowless lamp equipment 18. Therefore, the air supply and lighting system 10 does not need to be equipped with a position information acquisition device 35 and a control device 36 that stores a program related to tracking control.

[0042] Furthermore, if the light source 26 of the shadowless lighting system 18 is an LED light with a lens, multiple lenses may be provided for each light source 26. In such a configuration, the light field may be adjusted by the direction adjuster 27 of each recessed lighting fixture 25, or by the orientation of the multiple lenses in each light source 26. In addition, in a configuration in which illumination light passes through multiple lenses, the light field may be adjusted by changing the relative position between the multiple lenses. Moreover, the light field of the shadowless lighting system 18 may be manually adjustable, or the light field may be fixed.

[0043] The second surface light-emitting material 32, which functions as a monitor, may have a predetermined position. The operator timer may be configured to be displayed by a second surface light-emitting material 32 that functions as a monitor.

[0044] The second surface-emitting material 32 does not necessarily have to have a monitor function. In such a configuration, the second surface-emitting material 32 can be made up of a surface-emitting LED panel. The surface-emitting lighting system 19 may consist only of the first surface-emitting material 31 installed on the ceiling 15.

[0045] As shown in Figure 5, the air supply equipment 17 may have an illuminator 43 composed of a light guide plate 41 and a light source 42 for the light guide plate. The light guide plate 41 has a plurality of outlets 44 and is installed in the outlet area 21. The light source 42 for the light guide plate is installed so that illumination light is incident on it from, for example, the side of the light guide plate 41. The illuminator 43 illuminates the area around the operating table 12 with the illumination light incident on the light guide plate 41 using the inner surface of the outlets 44 as the emission surface. The direction, arrangement, and size of the outlets 44 are designed so that clean air is supplied uniformly around the operating table 12 and the illumination around the operating table 12 is uniform. Note that in Figure 5, a portion of the outlets 44 formed on the light guide plate 41 is shown.

[0046] In the above-described air supply and lighting system 10, the target of the air supply and lighting was the operating table 12. However, the air supply and lighting system 10 may also target other devices such as treatment tables installed in intensive care units, laboratory benches where various experiments are conducted, workbenches where visual inspections of products are performed in pharmaceutical factories, and workbenches where electronic equipment is assembled.

[0047] The technical concepts that can be understood from the above embodiments and modified examples are described below. (Note 1) The air supply lighting system includes a shadowless lighting system that has multiple light sources installed in the ceiling above the air supply lighting target and configured to change the direction of illumination, and illuminates the work area above the air supply lighting target in a shadowless manner; a position information acquisition device that acquires position information of objects around the air supply lighting target; and a control device that performs a process to change the direction of illumination according to the position information.

[0048] (Note 2) The location information acquisition device acquires the location information of the worker, and the control device changes the lighting direction according to the location information of the worker.

[0049] (Note 3) When the location information acquisition device acquires location information for multiple workers, the control device changes the lighting direction according to the location information of the multiple workers.

[0050] (Note 4) The location information acquisition device acquires location information of equipment located around the air supply lighting target, and the control device changes the lighting direction according to the worker's location information and the equipment's location information.

[0051] (Note 5) The air supply lighting system further comprises a surface-emitting lighting system having a surface-emitting material provided around the shadowless lighting system and configured to be switchable between an illumination state and a monitoring state, the position information acquisition device acquires the position information of the worker, and the control device selects the surface-emitting material according to the position information of the worker and performs a process to control the selected surface-emitting material to the monitoring state. [Explanation of symbols]

[0052] H10...Information processing device, H11...Communication device, H12...Input device, H13...Display device, H14...Storage device, H15...Processor, 10...Air supply and lighting system, 11...Operating room, 12...Operating table, 13...Floor, 14...Wall, 15...Ceiling, 17...Air supply equipment, 18...Shadowless lighting equipment, 19...Surface-emitting lighting equipment, 20...Clean air supply device, 21...Air outlet area, 24...Shadowless lighting area 25...Recessed lighting fixture, 26...Light source, 27...Direction adjuster, 31...First surface light-emitting material, 32...Second surface light-emitting material, 32a,32b,32c,32d...Second surface light-emitting material that functions as a monitor, 35...Position information acquisition device, 36...Control device, 37...Imaging device, 38...Medical equipment, 40c,40d...Operator, 41...Light guide plate, 42...Light source for light guide plate, 43...Illuminator, 44...Air outlet.

Claims

1. An air supply system that supplies clean air downward from an outlet area located in the ceiling directly above the target of the air supply lighting, thereby forming a laminar flow region of the clean air around the target of the air supply lighting, A shadowless lighting system having multiple light sources in a shadowless lighting area provided around the aforementioned air outlet area, which illuminates the work area on the air supply lighting target in a shadowless state, A surface-emitting lighting system comprising a first surface-emitting material provided around the shadowless lamp area and a plurality of second surface-emitting materials provided on a wall connected to the ceiling, which are capable of functioning as monitors, The control device is configured to select the second surface light-emitting material that functions as a monitor from among the plurality of second surface light-emitting materials. Air supply and lighting system.

2. The aforementioned air supply and lighting target is an operating table. The aforementioned work area is the surgical field. The air supply lighting system according to claim 1.

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